<template>
 <div>
     <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
        <el-row :gutter="20">
            <!-- 搜索框 -->
            <el-col :span="7">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>
            <!-- 用户列表区域 -->
        <el-table :data="userlist" border stripe>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态" prop="mg_state">
                <template v-slot="slotProps">
                    <!-- slotProps.row代表的就是这一行的数据 -->
                    <el-switch v-model="slotProps.row.mg_state" @change="userStateChanged(slotProps.row)"></el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作">
                <template v-slot="slotProps">
                    <!-- 修改按钮 -->
                   <el-button type="primary" icon="el-icon-edit" circle @click="showEditDialog(slotProps.row.id)"></el-button>
                    <!-- 删除按钮 -->
                  <el-button type="danger" icon="el-icon-delete" circle @click="removeUserById(slotProps.row.id)"></el-button>
                  <el-tooltip :enterable="false" effect="dark" content="分配角色" placement="top">
                      <el-button type="warning" icon="el-icon-setting" circle @click="setRole(slotProps.row)"></el-button> 
                  </el-tooltip>
                </template>
            </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum" 
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
    </el-pagination>
    </el-card>

     <!-- 添加用户对话框 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="30%"
        @close="addDialogClosed">
        <!-- 主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" class="demo-ruleForm">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户对话框 -->

    <el-dialog
    title="修改用户"
    :visible.sync="editDialogVisible"
    width="30%"
    @close="editDialogClosed"
    >
   <el-form :model="editFrom" :rules="editFormRules" ref="editFormRef" label-width="70px" class="demo-ruleForm">
            <el-form-item label="用户名">
                <el-input v-model="editFrom.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="editFrom.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="editFrom.mobile"></el-input>
            </el-form-item>
        </el-form>
    <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="eidtUserInfo">确 定</el-button>
    </span>
</el-dialog>

<!-- 分配用户角色对话框   -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="30%"
  @close="setRoleDialogClosed"
  >
  <div>
      <p>当前的用户：{{userInfo.username}}</p>
      <p>当前的角色：{{userInfo.role_name}}</p>
      <p>分配新角色：
           <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
            v-for="item in rolesList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id">
            </el-option>
         </el-select>
      </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>

 </div>
</template>

<script>
export default {
  data () {
      //验证邮箱规则
      var checkEmail = (rule, value, cb) =>{
          const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])/
          if(regEmail.test(value)){
              //合法的邮箱
              return cb()
          }
            return cb(new Error('请输入正确的邮箱格式'))
      }
      //验证手机规则
      var checkMobile = (rule, value, cb) => {
          const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
          if(regMobile.test(value)){
              return cb()
          }
          return cb(new Error('请输入正确的手机号'))
      }
    return {
        //获取用户列表的参数对象
        queryInfo:{
            query:'', //关键字查询
            pagenum: 1,//当前的页数
            pagesize: 5
        },
        userInfo:{},
        userlist: [],
        rolesList: [],
        selectRoleId: '',
        total: 0,
        addDialogVisible:false,
        editDialogVisible:false,
        setRoleDialogVisible: false,
        addForm:{
            username:'',
            password:'',
            email:'',
            mobile:''
        },//添加用户的表单数据
        editFrom:{},//修改用户表单数据
        //添加用户表单规则
        addFormRules:{

        username: [
          { required: true, message: "用户名不能为空", trigger: "blur" },
          {min: 3,max: 10,message: "用户名长度为3到10个字符",trigger: "blur"}
        ],

         password: [
          { required: true, message: "密码不能为空", trigger: "blur" },
          { min: 6, max: 15, message: "密码长度为6到15个字符", trigger: "blur" }
        ],

        email:[
            {validator:checkEmail, trigger: "blur"}
        ],

        mobile:[
            {validator:checkMobile, trigger: "blur"}
        ]
        },
        //修改用户表单规则
        editFormRules:{
            email:[
            { required: true, message: "邮箱不能为空", trigger: "blur" },
            {validator:checkEmail, trigger: "blur"}
        ],

        mobile:[
            { required: true, message: "手机号码不能为空", trigger: "blur" },
            {validator:checkMobile, trigger: "blur"}
        ]
        }
    }
  },
  created(){
      this.getUserList()
  },
  methods:{
      //获取所有用户数据
     async getUserList(){
        const {data: res} = await this.$http.get('users',{params: this.queryInfo})
        if(res.meta.status !==200){
            return this.$message.error('获取管理员列表失败')
        } 
        this.userlist = res.data.users
        this.total = res.data.total
      },
    //监听pagesize的改变事件
    handleSizeChange(newSzie){
        this.queryInfo.pagesize = newSzie
        this.getUserList();
    },
    //监听页码值的改变事件
    handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getUserList();
    },
    //监听状态开关的改变
   async userStateChanged(userinfo){
      const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if(res.meta.status !== 200 ){
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('用户状态更新失败')
      } 
      this.$message.success('用户状态更新成功')
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed(){
        //重置表单
        this.$refs.addFormRef.resetFields() 
    },
    //添加新用户
    addUser(){
        //表单预校验
        this.$refs.addFormRef.validate(async valid =>{
           
            if(!valid) return

            const {data:res} = await this.$http.post('users',this.addForm)
            if(res.meta.status !== 201){
                return this.$message.error('用户添加失败')
            }
            this.$message.success(res.meta.msg)
            //隐藏添加用户框
            this.addDialogVisible = false
             //重新刷新用户列表
            this.getUserList()
        })
    },
    //修改用户信息
        //展示修改用户信息对话框
    async showEditDialog(id){
        this.editDialogVisible = true

        const {data:res} = await this.$http.get('users/' + id)
        if(res.meta.status !== 200){
            return this.$message.error('获取用户信息失败')
        } 
        this.editFrom = res.data
    },
        //重置修改用户表单
    editDialogClosed(){
         this.$refs.editFormRef.resetFields()
    },
        //修改用户信息
    eidtUserInfo(){
        //表单预验证
        this.$refs.editFormRef.validate (async valid =>{
            if(!valid) return 
            const {data:res} = await this.$http.put('users/'+ this.editFrom.id, {
                email:this.editFrom.email,
                mobile:this.editFrom.mobile
            })
            if(res.meta.status !==200){
                return this.$message.error('更新失败')
            } 
            this.$message.success(res.meta.msg)
            //关闭对话框
            this.editDialogVisible = false
            //刷新列表
            this.getUserList()
        })
    },
    //删除用户
   async removeUserById(id){
       //弹框询问用户是否删除
     const confirmRes = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch( err => err );
        
        if(confirmRes !== 'confirm'){
            return this.$message.info('已取消删除')
        }

      const {data:res} = await  this.$http.delete('users/' + id)
      if(res.meta.status !== 200){
          return this.$message.error('删除失败')
      } 
      this.$message.success(res.meta.msg)
      this.getUserList()
    },
    // 设置分配角色对话框
    async setRole(userInfo) {
        this.userInfo = userInfo
        // 在展示对话框之前获取所有角色列表
        const {data:res} = await this.$http.get('roles')
        if(res.meta.status !== 200) {
            return this.$message.error('获取角色列表失败！')
        }
        this.rolesList = res.data
        this.setRoleDialogVisible = true
    },
    // 点击按钮，分配角色
    async saveRoleInfo() {
        if(!this.selectRoleId) {
            return this.$message.error('请选择分配的角色!')
        }
        const { data:res } = await this.$http.put(`users/${this.userInfo.id}/role`,{
            rid: this.selectRoleId
        })
        console.log(res);
        if(res.meta.status !== 200){
            return this.$message.error(res.meta.msg)
        }
        this.$message.success('更新角色成功！')
        this.getUserList()
        this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
        this.selectRoleId = ''
        this.userInfo = ''
    }
  }
}

</script>
<style lang="less" scoped>

</style>

